I have the mk3i and use for Freediving and since a few days it gives speed bumps on the charts. This is either directly in the Garmin app or apnealizer (a program to chart the dives with more options). That the bumps are also directly in the Garmin app, means they come directly of the watch.
I tested to move the watch in the hood, on the wrist. Different Freediving disciplines bifins or free immersion. I restarted the watch but nothing seems to make a difference.
What should I try? The depth sensor seems to be fine, a hard reset? Or is that already a reason to contact the support. Something is definitely not right.
Basically the watch reads 0m/s and then jumps directly to 2m/s multiple times in the dive.
Anyone else experienced the same problem?